Locomotive smoke deflector



u] 15 1924- J y F. L. PERKINS LOCOHOTI B SMOKE DEF'LECTOR Filed June 261922 2 Sheets-Sheet. 1

2 Shouts-Sheet 2 F. L. PERKINS LOOOIO'IIVE SMOKE DBPLBCTOR Filed June 261922 July 15, 1924.

Patented July 15, 1924.

FRED. L. PERKINS. OF SAN BERNARDINO, CALIFORNIA.

LOCOMOTZIVE SMOKE DEFLECTOR.

Application filed June 26, 1922.

To all wi y m. it may concern:

Be it known that I, FRED. L. PERKINS, a citizen of the United States,residing at San Bernardino, in the county of San Bernardjno and State ofCalifornia, have invented certain new and useful Improvements inLocomotive Smoke Deflectors, of which the following is a specification.

My invention relates to improved smoke deflecting devices, and isparticularly designed foi use in connection with the smoke stack of asteam locomotive, but applica- 13 6 use in other Ways. It is theprincipal object of my invention to provide improved means for movingthe deflector into and out of operative position.

That which I believe to be new and desire to cover by Letters Patent isset forth in the claims.

n the d awings* F'g. 1 is a side view of a locomotive, par ly b ke a ayeq pped with my proved smoke deflecting means, a change position of thedeflector being shown in otte .lgiiles.

i 2 is a view of the smoke deflector, subs antially a section taken on 2of Fig. 1,.

ig- 3 is an enlarged detail view, being a Section taken on line 3-'-.3(If Fig. 2.

Fig. 4 is an enlarged detail view, ta-ken substantially on line Ir-+4 ofFig. 1.

Fig. 5 is an enlar ed detail view of the connection between th pistonrod andthe belt employed for moving h eflecto o of operative position.

Fig. 6 is a horizontal sec nal view, taken on line 66 of Fig. 1.

Fig. 7 is a vertical section through the controlling valve of the powermeans for throwing the deflector out of operative positi n; and.

8 is a top plan view of the valve lug. lfieierring to the severalfigures of the drawing, in which correspondmg parts are indicated by thesome reference characters: indicates a locomotive boiler, with a smokestack 16 rising therefrom, and with a cab 17 of any approved typelocatetd near its rear end. As is best shown in Fig. 6, a two-part ring18 is secured by means of bolts 19 about the stack 16, one of the partsof the ring being provided with arms 20 in the outer ends of which ashaft 21 is revolubly mounted. 22 indicates a deflector Serial No.571,015.

provided with arms or sectors :23 welded or v otherwise [irinly securedthereon. the outer ends of the arms 23 being mounted upon the shaft 21to which they are rigidly secured in any suitable n'ianner. As is bestshown in Fig. 1, the deflector 22 is given a backward curvature, so asto direct the smoke and hot gases from the stack 16 rearwardly in asubstantially horizontal direction. The deflector, however, is ofsubstantially the same size as that of the stack 16, whereby the hotgases coming from the stack are not permitted to expand to anyappreciable extent within the deflector, but are directed backwaizdly soas to pass directly over the cab 17 at the rear of the locomotive, the

deflector being free of any means which would have any material tendencyto out down the velocity of movement of the hot gas s- For holding thedeflector 22 positively in position upon the upper end of the stack 16,and for moving it alternatively out of op-er ative position uponthestack, I have pro vided a drum or pulley 24, fixedly mounted upon oneend of the shaft 21, together with means for giving said drum a rotarymovement as may e desired. This rotating means comprises a flexibleconnector 25 extending about idler pulleys 26 and 27, and having itsends wrapped about the drum 24,

and fixedly secured thereto. as at the points 28 and 29, as illustratedin Fig. 3. The idle-r pulley 26 is preferably adjustable forwardly andbaclnvardly by means of a screw 30. as is illustrated in Fig. 1. As willbe readily understood, when the fiexible connector or cable 25 is movedalternatively in opposite directions, the deflector 22 will be swungalternatively into and out of operative position. as shown in solidlines in Fig. 1, about the rock shaft 21.

For moving the flexible connector 25 for carrying the deflector into andout of operative position, I have provided a cylinder 31 fixedly mountedupon the boiler 15 in rear of the stack 16. Within the cylinder 31 islocated a piston provided with a piston rod 33. the outer end of whichis connected by means of a suitable clip 34 with the flexible connectoror cable 25. As is best shown in Fig. 5, the clip 34 is formed of twoparts, one of which is secured by means of screw threads upon the frontend of the piston rod 33, and the other of which is in the form of aplate 35 secured by means of screws 36, so as to grip the cable 25. Foroperating the piston 32, l have connected the cylinder 31 with asuitable source of air, steam or other fluid under pressure, suchconnection being effected by the use of pipes 37 and 38, which areconnected in turn through a valve 35) with a pipe 40 leading from thesource of the fluid under pressure.

As will be readily understood, the valve 39 may be of any approved typewhich will permit the fluid under pressure from the pipe 40 to be fedalternatively through the pipes 37 and 38, the arrangement being suchthat when one of said pipes is connected for receiving the fluid underpressure, the other pipe is open so as to permit the ex haust from theopposite end of the cylinder 31. In the construction shown in Figs. 7and 8, the valve comprises a valve plug ll provided with a peripheralgroove 42 and a transverse opening 43 by which the air is admittedalternatively through the pipes 38 and 37, respectively. Radially disposed exhaust ports 44 and &5 are provided leading to a central bore 46.The valve plug 41 is provided at its outer end with a handle 47 by meansof which the desired rotary movement can be given to the valve plug foreffecting the desired control, as will be readily understood.

As is shown, in Fig. 1, the valve 39 is preferably located Within thecab 17, so as to be readily accessible to the train crew.

As will be readily understoodfwhen the deflector 22 is in operativeposition, as shown in Fig. 1, it is held in such position by thepressure of the air or other fluid upon the forward face of the piston32. When it is desired to move the deflector out of operative positioninto the position shown in dotted lines in Fig. 1, it is only necessarythat the valve plug 41 be given a movement in clockwise direction, intothe position shown in Fi 7, so as to connect the rear end of thecylinder 31 with the source of air under pressure, and to connect thefront end of the cylinder with the exhaust ports of the valve 39. Thepiston 32 is then moved forward, so as to cause the drum 24 to revolvein clockwise direction, as shown in Fig. 1, so as to carry the deflectorbackwardly and downwardly about the rock shaft 21.

While I prefer to employ the form of structure illustrated in thedrawings. and above described, it will be understood that I do not wishto be limited to the details of such construction, except as hereinafterspecifically claimed, inasmuch as it is evident that many changes can bemade without departing from the spirit of my invention.

I claim:

1. The combination of a smoke stack, a deflector pivotally mounted onthe stack for directing the smoke in a substantially horizontaldirection, a drum rotatable with said deflector about its pivotalmounting, a flexible connector extending about said drum, and means formoving said flexible connec tor in opposite directions for rotating saiddrum and said deflector for moving the deflector into and out ofoperative position above said stack.

2. The-combination of a smoke stack, a rock shaft revolubly mountedthereon, a de- Hector fixedly mounted on said rock shaft and movablethereon into and out of position above the stack for directing the smokein a substantially horizontal direction, a power wheel fixedly mountedon said rock shaft, a cylinder, a. piston in said cylinder, operativeconnections between said piston and saidpo'wer wheel adapted for givingsaid wheel a rotary movement upona stroke of the piston in eitherdirection serving to movsaid deflector into and out of operativeposition on said stack, and meansyfor feeding fluid under pressure tosaid cylinder for giving saidpiston alternate strokes in oppositedirections.

3. The combination of a smoke stack, a deflector pivotally mounted onthe stack for directing the smoke in a substantially horizontaldirection, a drum rotatable with said deflector about its pivotalmounting, a flexible connector wrapped about said drum and having bothends secured to the drum, idler pulleys associated with said drum forsup porting said flexible connector, and power means connected with saidflexible connector for moving it alternately in opposite directions forrotating said drum and said deflector about their pivotal mounting formoving the deflector into and out of opera tive position above saidstack.

FRED. L. PERKINS.

till

